Mixing device



Sept. 1, 1931. HANLEY 1,821,468

. I MIXING DEVICE Filed April 16, 1928 INVENTOR. 1/060 W027): 3/.

W ATTORNEY. S

Patented Sept. 1, -1931 UNITED STATES JOHN HARLEY, OF DETROIT, MICHIGAN MIXING DEVICE Application filed April 1c, 1928. Serial mfzvoaas.

My invention relates to a new and useful improvement in a mixing device adapted for use on internal combustion engines and intended to effect a thorough mixing of the air and fuel delivered to the combustion chamber.

It is an object of the present invention to provide a device of this class which will be simple in structure, economical of manufacture and highly efficient in use.

Another object of the invention is the provision of a device of this class which may be easily and quickly installed and which, when in operation, will serve to setup a Vor-v tex or whirling of the air and fuel being delivered to the engine and serve to remove from the walls of the intake manifoldsuch.

fuel as would otherwise accumulatelthereon.

It is another object of theinvention to provide a device of this class which will assure nate engine knock, aiford an easy and quick starting of the motor and efiect an economy in operation of the engine. v Other objects will appear hereinafter.

- Theinvention consists in the combination and arrangement of parts hereinafter described and claimed. i

The invention will be best understood by a reference tothe accompanying. drawings which form a part of this specification and in which,

Fig. 1 is a side elevational View of the invention showing it applied. Fig.2 is asectional view of the invention taken on line 22 of Fig. 1.

The invention is formed preferably from a single piece of metal and'comprises the flange 8 which is preferably formed circular or of a contourto correspond to the contour of the intake manifold with which used.

Projecting outwardly from one face of the flange 8 is a conical-shaped portion 10 slitted as at 9 to provide a plurality of veins or blades 10,,these veins'or'blades being inclined to the axis of the device, as shown in Fig. 2. The slits 9 may be termed elemental slits since each of the slits defines a position of the generatrix of the cone and since thegeneratrix in any position is called an element of the conical surface.

The end 11 of the conical-shaped member is closed. i 1 In a device of this kind it is desirable that a free flowing of the fuel to the engine be permitted and to this end I have provided slits in the conical-shaped portion of such width that their combined area is equal to the cross section area of the manifold with which used, so that there is no retarding of the gases. In the form illustrated in the drawings this area is, of course, the same as lllhe area of the open end of the' conical mem- In Fig. 1 I have shown the invention applied inwhich the flange is inserted and clamped between the sections 10 and 13 of the manifold. 1 Bolts 14 which project through the flanges 15 and 16 also project through the spacer ring 17 positioned therebetween. j

In operation as the air and gas is. drawn through the conical-shaped member a whirling motion is set up and the fuel which ordinarily would accumulate on the surface of the manifold 12 is removed therefrom by the vortex or whirling motion of the fuel and air passing into the engine. I am aware that various devices for attempting a vortex have been developed but in the 'present invention, whichhas proven most efiicient in use, the advantages sought for are obtained which it is not believed are possibleili known devices. The provision of the flange on the conical-shaped portion affords a means for easily and quickly assembling the device,-and" the formation of the slits so that their coinbined area bears a relation to the cross section area of the mam fold .12, in addition to permitting a free flow of the gas, sets up a maximum vortex or whirling of the aira-nd the fuel The closed cone cap 11 deflects the central portion of the gas stream from the carburetor so that it is driven downwardly and outwardly. This deflection causes a vacuum above the cone into which a section of the gas rushes, thus adding to the thoroughness of the mixing.

While I have illustrated and described the wish to limit myself to the precise details of structure shown, but desire tooavaitmyself of such variations and modifications as come within the scope of the appended claims. Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A mixing device of the class described,

adapted for insertion in an intake conduit, comprising: a flange; and a hollow conical body having an open large end and a closed small end and projecting outwardly from one face of said flange, the sides of said body being provided with slits formed therein, the combined area of said slits being equal to the area of the open end of said cone.

2. A mixing device of the class described adapted for insertion in an intake conduit, comprising: a flange; and a hollow conical body having an open large end and a closed small end and projecting outwardly from one face of said flange, the sides of said body being provided with slits formed therein, the combined area of said slits being equal to the area of the open end of saidcone, the

open end of said cone being of the same I diameter as said conduit,

3, A device of the class described, comprising: a flange; a conical-shaped hollow body having an open large end and a closed small end and projecting outwardly from one face of said flange and provided with elemental slits; the combined area of said slits being equal to the area of the open end of said cone.

In testimony whereof I have signed the foregoing specification.

' JOHN HANLEY. 

